![](/images/new-backgrounds/1264492/26449231x1.webp)
R
Preface: About This Guide
•Chapter 11, “Dynamic Switching of
•Chapter 12, “Constraining the Core” defines the constraint requirements of the core.
•Chapter 13, “Interfacing to Other Cores” describes additional design considerations associated with implementing the core with the
•Chapter 14, “Special Design Considerations” describes additional design considerations associated with implementing the core.
•Chapter 15, “Implementing the Design”describes how to simulate and implement your design containing the core.
•Appendix A, “Core Verification, Compliance, and Interoperability” describes how the core was verified.
•Appendix B, “Core Latency” defines the latency of the core.
•Appendix C, “Calculating the DCM Fixed Phase Shift Value” instructs the user about how to calculate the system timing requirements when using DCMs with the core.
•Appendix D,
•Appendix E, “Rx Elastic Buffer Specifications” describes the depth of the Rx Elastic Buffers which are available with the core. The size of the buffer is related to the maximum frame size which the core can accommodate.
•Appendix F, “Debugging Guide” provides information for debugging the core within a system.
Conventions
This document uses the following conventions. An example illustrates each convention.
Typographical
The following typographical conventions are used in this document.
Convention | Meaning or Use | Example | |
|
|
| |
| Messages, prompts, and |
| |
Courier font | program files that the system | speed grade: - 100 | |
| displays |
| |
|
|
| |
Courier bold | Literal commands you enter in | ngdbuild design_name | |
| a syntactical statement |
| |
|
|
| |
| References to other manuals | See the User Guide for details. | |
Italic font |
|
| |
| If a wire is drawn so that it | ||
|
| ||
| Emphasis in text | overlaps the pin of a symbol, | |
|
| the two nets are not connected. | |
|
|
| |
Dark Shading | Items that are not supported | This feature is not supported | |
or reserved | |||
|
| ||
|
|
|
18 | www.xilinx.com | Ethernet |
|
| UG155 March 24, 2008 |